/* ─── CSS Variables ─── */
:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.8);
  --border: rgba(51, 65, 85, 0.5);
  --border-hover: rgba(56, 189, 248, 0.3);
  --text: #f1f5f9;
  --text-dim: #64748b;
  --text-muted: #475569;
  --accent: #38bdf8;
  --accent-glow: rgba(56, 189, 248, 0.2);
  --green: #22c55e;
  --green-glow: rgba(34, 197, 94, 0.2);
  --red: #ef4444;
  --red-glow: rgba(239, 68, 68, 0.2);
  --orange: #f59e0b;
  --purple: #a855f7;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.3);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text);
  min-height: 100vh; overflow-x: hidden; line-height: 1.5;
}
.bg-particles {
  position: fixed; inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(56,189,248,0.03) 0%, transparent 50%), radial-gradient(ellipse at 80% 20%, rgba(34,197,94,0.03) 0%, transparent 50%), radial-gradient(ellipse at 40% 80%, rgba(168,85,247,0.02) 0%, transparent 50%);
  pointer-events: none; z-index: 0;
}
.app { position: relative; z-index: 1; max-width: 1200px; margin: 0 auto; padding: 16px; }

/* ─── Login Modal ─── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center; z-index: 9999;
  animation: fadeIn 0.3s ease;
}
.modal-overlay.hidden { display: none; }
@keyframes fadeIn { from{opacity:0} to{opacity:1} }
.modal {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px;
  padding: 0; width: 360px; max-width: 90vw; box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  overflow: hidden;
}
.modal-header {
  padding: 24px 24px 16px; font-size: 20px; font-weight: 700; text-align: center;
}
.modal-body { padding: 0 24px 20px; }
.modal-input {
  width: 100%; padding: 14px 18px; background: rgba(0,0,0,0.3);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text); font-size: 16px; outline: none; text-align: center;
  transition: border-color var(--transition); font-family: var(--font);
}
.modal-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.login-error { color: var(--red); font-size: 13px; text-align: center; margin-top: 10px; min-height: 20px; }
.modal-footer { padding: 0 24px 24px; }
.modal-btn {
  width: 100%; padding: 14px; background: linear-gradient(135deg,var(--accent),#0284c7);
  border: none; border-radius: var(--radius-sm); color: #fff; font-size: 16px;
  font-weight: 700; cursor: pointer; transition: transform var(--transition);
}
.modal-btn:hover { transform: translateY(-1px); }
.modal-btn:active { transform: translateY(0); }

/* ─── Navbar ─── */
.navbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 20px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius);
  backdrop-filter: blur(20px); margin-bottom: 20px; flex-wrap: wrap; gap: 12px;
}
.nav-left { display: flex; align-items: center; gap: 16px; }
.nav-logo { display: flex; align-items: center; gap: 8px; }
.logo-icon { font-size: 24px; }
.logo-text { font-size: 18px; font-weight: 800; background: linear-gradient(135deg, var(--accent), var(--green)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-status { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; }
.status-badge { font-size: 10px; animation: pulse 2s infinite; }
.status-badge.online { color: var(--green); } .status-badge.offline { color: var(--red); } .status-badge.checking { color: var(--orange); }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }
.nav-ws-badge { font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 20px; background: rgba(239,68,68,0.15); color: var(--red); }
.nav-ws-badge.connected { background: rgba(34,197,94,0.15); color: var(--green); }
.nav-right { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.nav-ip { display: flex; align-items: center; gap: 8px; background: rgba(0,0,0,0.3); padding: 6px 12px; border-radius: 6px; border: 1px solid var(--border); }
.nav-ip code { font-size: 13px; font-weight: 600; color: var(--accent); letter-spacing: 0.3px; }
.ip-copy { background: none; border: none; cursor: pointer; font-size: 14px; padding: 2px 4px; transition: transform var(--transition); }
.ip-copy:hover { transform: scale(1.2); }
.nav-admin-badge { font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 20px; background: rgba(100,116,139,0.15); color: var(--text-dim); transition: all var(--transition); }
.nav-admin-badge.logged-in { background: rgba(34,197,94,0.15); color: var(--green); }

/* ─── Stats ─── */
.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 10px; margin-bottom: 20px; }
.stat-block { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 10px; text-align: center; backdrop-filter: blur(20px); transition: border-color var(--transition); }
.stat-block:hover { border-color: var(--border-hover); }
.stat-value { font-size: 20px; font-weight: 800; color: var(--accent); margin-bottom: 2px; }
.stat-value .stat-divider { color: var(--text-muted); margin: 0 2px; font-weight: 500; }
.stat-label { font-size: 11px; color: var(--text-dim); font-weight: 500; }

.content-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 768px) { .content-grid { grid-template-columns: 1fr; } .stats-row { grid-template-columns: repeat(3, 1fr); } }
.col-left, .col-right { display: flex; flex-direction: column; gap: 16px; }

.panel { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); backdrop-filter: blur(20px); overflow: hidden; transition: border-color var(--transition); }
.panel:hover { border-color: var(--border-hover); }
.panel-header { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; border-bottom: 1px solid rgba(51,65,85,0.3); }
.panel-header h2 { font-size: 14px; font-weight: 600; }
.panel-body { padding: 16px; }

.perf-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.perf-item { padding: 10px; background: rgba(0,0,0,0.2); border-radius: var(--radius-sm); }
.perf-label { font-size: 11px; color: var(--text-dim); margin-bottom: 4px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.perf-bar { height: 6px; background: rgba(255,255,255,0.05); border-radius: 3px; overflow: hidden; margin-bottom: 4px; }
.perf-fill { height: 100%; border-radius: 3px; background: var(--accent); transition: width 0.5s ease; }
.perf-fill.sys { background: var(--orange); } .perf-fill.mem { background: var(--green); } .perf-fill.sysmem { background: var(--purple); }
.perf-value { font-size: 13px; font-weight: 700; }
.ws-label { font-size: 10px; padding: 2px 8px; background: rgba(34,197,94,0.15); color: var(--green); border-radius: 20px; }

.log-body { max-height: 280px; overflow-y: auto; font-family: var(--mono); font-size: 11px; line-height: 1.6; }
.log-body::-webkit-scrollbar { width: 4px; } .log-body::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.log-line { padding: 2px 0; border-bottom: 1px solid rgba(255,255,255,0.02); color: var(--text-dim); }
.log-line.info { color: var(--accent); } .log-line.warn { color: var(--orange); } .log-line.error { color: var(--red); } .log-line.cmd { color: var(--green); font-weight: 600; }
.log-placeholder { color: var(--text-muted); text-align: center; padding: 20px; font-style: italic; font-family: var(--font); font-size: 13px; }
.log-refresh { background: none; border: none; cursor: pointer; font-size: 14px; color: var(--text-dim); transition: transform var(--transition); padding: 2px; }
.log-refresh:hover { transform: rotate(180deg); color: var(--accent); }

.player-count-badge { background: var(--accent); color: var(--bg-primary); font-size: 12px; font-weight: 800; padding: 2px 10px; border-radius: 20px; min-width: 24px; text-align: center; }
.player-count-badge.active { background: var(--green); }
.empty-state { text-align: center; padding: 16px; } .empty-icon { font-size: 32px; margin-bottom: 6px; } .empty-state p { color: var(--text-dim); font-size: 14px; }
.player-item { display: flex; align-items: center; gap: 10px; padding: 8px 12px; margin-bottom: 6px; background: rgba(56,189,248,0.05); border: 1px solid rgba(56,189,248,0.1); border-radius: var(--radius-sm); }
.player-item:hover { background: rgba(56,189,248,0.1); }
.player-avatar { width: 28px; height: 28px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--purple)); display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: #fff; flex-shrink: 0; }
.player-name { font-weight: 600; font-size: 13px; flex: 1; }
.player-status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 6px var(--green-glow); }

.motd-box { text-align: center; padding: 6px; }
.motd-text { font-size: 20px; font-weight: 700; background: linear-gradient(135deg, var(--accent), var(--green)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; word-break: break-word; }
.motd-placeholder { color: var(--text-muted); font-size: 14px; font-style: italic; }

.admin-toggle { cursor: pointer; user-select: none; transition: background var(--transition); }
.admin-toggle:hover { background: rgba(56,189,248,0.05); }
.toggle-arrow { transition: transform var(--transition); font-size: 12px; color: var(--text-dim); }
.toggle-arrow.open { transform: rotate(180deg); }
.admin-body.hidden { display: none; }
.admin-body.disabled { opacity: 0.4; pointer-events: none; }
.admin-buttons { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.btn { padding: 9px 14px; border: none; border-radius: var(--radius-sm); font-size: 12px; font-weight: 600; cursor: pointer; transition: transform var(--transition), opacity var(--transition); font-family: var(--font); flex: 1; min-width: 70px; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 3px 10px rgba(0,0,0,0.3); }
.btn:active { transform: translateY(0); } .btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-start { background: linear-gradient(135deg,var(--green),#16a34a); color: #fff; }
.btn-stop { background: linear-gradient(135deg,var(--red),#dc2626); color: #fff; }
.btn-stop.emergency { background: linear-gradient(135deg,#dc2626,#991b1b); font-weight: 800; }
.btn-restart { background: linear-gradient(135deg,var(--orange),#d97706); color: #fff; }

.cmd-row { display: flex; gap: 6px; margin-bottom: 10px; }
.cmd-input { flex: 1; padding: 10px 14px; background: rgba(0,0,0,0.3); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-size: 13px; font-family: var(--mono); outline: none; }
.cmd-input:focus { border-color: var(--accent); }
.cmd-input::placeholder { color: var(--text-muted); font-family: var(--font); }
.cmd-send { padding: 9px 16px; background: linear-gradient(135deg,var(--accent),#0284c7); border: none; border-radius: var(--radius-sm); color: #fff; font-weight: 700; cursor: pointer; font-size: 12px; transition: transform var(--transition); }
.cmd-send:hover { transform: translateY(-1px); }

.admin-footer { display: flex; align-items: center; gap: 10px; }
.btn-logout { padding: 8px 14px; background: rgba(100,116,139,0.2); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-dim); font-size: 12px; font-weight: 600; cursor: pointer; font-family: var(--font); transition: all var(--transition); }
.btn-logout:hover { background: rgba(239,68,68,0.15); border-color: var(--red); color: var(--red); }

.admin-msg { font-size: 12px; font-weight: 500; min-height: 0; flex: 1; }
.admin-msg.success { color: var(--green); } .admin-msg.error { color: var(--red); } .admin-msg.info { color: var(--accent); }

.info-footer { display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: var(--text-dim); padding: 12px 16px; }
.update-badge { background: rgba(56,189,248,0.1); padding: 3px 8px; border-radius: 20px; font-weight: 500; }

.toast-container { position: fixed; top: 20px; right: 20px; z-index: 9998; display: flex; flex-direction: column; gap: 8px; }
.toast { padding: 10px 18px; border-radius: var(--radius-sm); font-size: 13px; font-weight: 500; box-shadow: var(--shadow); animation: slideIn 0.3s ease, fadeOut 0.3s ease 2.7s forwards; backdrop-filter: blur(20px); }
.toast.success { background: rgba(34,197,94,0.9); color: #fff; }
.toast.error { background: rgba(239,68,68,0.9); color: #fff; }
.toast.info { background: rgba(56,189,248,0.9); color: #fff; }
@keyframes slideIn { from{transform:translateX(100%);opacity:0} to{transform:translateX(0);opacity:1} }
@keyframes fadeOut { from{opacity:1} to{opacity:0} }

::-webkit-scrollbar { width: 6px; } ::-webkit-scrollbar-track { background: transparent; } ::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

@media (max-width: 500px) {
  .app { padding: 8px; } .navbar { padding: 10px 14px; flex-direction: column; }
  .nav-ip code { font-size: 11px; } .stats-row { gap: 6px; } .stat-value { font-size: 16px; }
  .perf-grid { grid-template-columns: 1fr; }
}